Cumbustion chambers -GSR: 41.6cc *quench pads -ITR/CTR: 42.7cc *no quench pads -B16: 42.7cc *no quench pads Intake ports -GSR: unported -ITR/CTR: ported -B16: unported Cams in terms of size (1= smallest 4 biggest) -GSR: 2 -ITR: 3 -B16A: 1 -B16B: 4 Valve springs -GSR: single valve springs -ITR/CTR: dual valve springs -B16: single valve springs Conclusion (personal opinions, facts will be marked with an "*"): While the B16a, B16b and B18C5 all share the same casting, the only real difference is the mild port work, cams and valve springs.* The GSR is the odd ball head here, the intake flange is not compatible with the rest of the B-series engine whether a B16a/b, B18C5, B18a/b or B20a/b. To fit any of those intakes on, you must redrill the flange.* The in my opinion, unless you want scene point, TypeR head isnt worth the money. If youre building a motor, youre going to be swapping the cams and valve springs anyway, and porting the head even further so why pay that extra money for something you cant take advantage of? That being said, if i had to choose (and i have already) between a B16a/TypeR or GSR head, i would always choose a GSR head even though the GSR head costs more than a B16a head and isnt ported with milder cams and springs than a TypeR. Here is why: the GSR has quench pads, that not only helps boost the compression a bit, but also helps prevent detonation by providing in cylinder mixture. Given nothing else has changed from the moment these engines and heads were assembled. Take a TypeR, it either has an 11.32cr for the Japanese model or 10.8cr for the US version of the B18C and 10.76 for the B16B. Now remove that Type R head and cap the short block with a GSR head and the TypeR B18C goes up to 11.59cr for the japanese version, 11.04cr for the US version and 11.03cr for the B16B. Now factor in a 4% increase in power for every 1.0 bump in compression and you will have gain roughly 1hp with each engine. Although that may not seem like much as is, because of the decresed chance of detonation, now you can run even more advanced ignition timing and make slighlty more power. Now thats for stock engines and probably really impractical if you have a complete engine but say you bought just a short block, i would just go for a GSR head, or if youre building an engine from top to bottom like me, im going for a 12:1 CR and still try to run on pump gas, a GSR head just might allow that while not running too big a dome (i prefer flat top pistons over domed). Second reason why i would choose a GSR head, porting it to gasket match is going to be more beneficial than just the mild bowl work the TypeR head has. And given the extra cost of the TypeR head, its not worth it. Third reason(s) is the valve train. Yes the TypeR heads have more aggressive cams and dual valve springs but if youre like me, youre not going to be keeping the stock valve train anyway so why pay extra for what you wont use? So more compression at a safer level, and unnecessary items is why i would choose a GSR head over any B-series head. Also, when Dart opted to cast their own B-series based head, they chose to use quench pads (like the GSR) even though they decided to increase the chamber volume to increase the cylinder volume for more power with boosted applications.

The numbers indicated at the end of the video just means the dates, “97” is the year “3” is the month, “13” is the day and “6” is the batch, so it’s the 6th “batch”/block made on March 13th of 1997, this is indicated in case there was an issue with the block introduced in the future to pinpoint the engines made on that day

only 98 spec dc2 type R comes with the 4-1 header, 96 spec comes with 4-2-1.

I need headers for my Honda

The PR3 casting was originally cast for the EF B16A -- less core shifts in the mold compared to the P30. One more difference is the quench pad design on the GSR head, the valve seat angles on the ITR head is also different. :)

GSR intake manifold wont fit a type r.

From the little I have been able to find out in a related enquiry the Honda B18C2 is the aussie domestic market 1998 - 2001 Integra DC2 Type-R version of awesomeness. We identified a clear need for lightning fast accelleration in typical aussie driving conditions out back on stretches of road hundreds of miles long, with little to no traffic, and not many external things to slow us down. Very nice engines, sound pretty racy with the right pipes 'n echo chamber setup.

the p73 intake wont fit a p72 head stud pattern is different, its easy to check for type r parts because those parts will be stamped with p73, anything with p72 is gsr and p75 is b18b pr3 is b16 number like you said or p30 as well can be a b16 part number :)

Subscribed for the header clarification comment. Bugs the hell out of me when people say headers when referring to an inline engine or something only using one header. Thank you for that lol

Gsr the upper radiator hose attaches on the exhaust side of the head. Type R it attaches to the intake side. Itr heads have a green paint on the head where the distributor bolts on to. Quick tell tale signs if your buying a swap. Towards the end of the video. Those are the date code of the head. You can tell when the head was casted by looking at that.

You say you like correcting people when they dont know what they're talking about. But through out the video it became more clear you also dont know what you're talking about.

B18C6 is in UK. I saw it in a magazine. Great vid bro!

thanks for your help you've cleared up so much about the gsrs and r engines I didn't know

Real informative video about not knowing anything about nothing

3:45 Threw up his set

the difference between the two the type r has 11-1 compression cam is bigger trans has shorter gears gsr has less compression longer geared trans and smaller cams the pistons n crank are the same size/mm

I’m so glad this video came up on my feed because I’ve been looking for a b20b engine for my civic and I’ve been to trying to make sure I don’t something that has all types of diff parts on it

on the left side of the head between the distributor and vtec solenoid, there will be a stamped code that telling what type of head it is. its either p30 for b16a/b18cr and p72 for gsr. one thing why b18cr heads are stamped with p30 and not p73 is because they are using the same on the b16a but its port and polished on the intake side and different internals.

Found your channel yesterday my G, love the good info my guy 🙏🏽

Awesome, concise, thorough and very articulate dissertation on GS-R vs Type-R.. thank you!! I laughed out loud with the header comment…Lol!! They say mice’s were say mice!! Well said, that stuff drive me crazy too! New sub just for that comment alone.

Whole lot of talking for a tiny piece of info...that coulda been said in 1-2 sentences

there is something else you should look for to determine Type R from GSR. The type R had an Oil Cooler and GSR did not. Also the ITR had a thicker dust cover(aluminum i think) for the flywheel and gsr had thin metal cover.. if u have the option to see motor in person have them pull the plugs to see if piston code is atleast correct p72 gsr, pr3 ITR i dont know for certain but i do think that the whole rotating assembly is different between the 2. been told ITR has knife edge crank thats balanced for higher rpms aswell

weird. im still stuck. i have a GSR b18c1 bottom end and a b16 SOMETHING head with the code pr3-3! its really immaculate condition and people say its either an ITR/TYPE R/OR just a normal b16A head. i have no clue, im about to take off the valve cover and see the intake springs to see if they're dual or single, also this head doesnt hit vtec till 6k either so idk im at a loss.

Green paint can be found on the rear corner of the cylinder head near the distributor on a Type R

The other thing that's easy to tell which is which, just look at the upper hose housing on the head. If it's in the front closest to the header it's GSR, if it's towards the back, closest to the intake manifold it's a type R or B16 head

you could also read the block under the b18c if start on 200 or something is a type r, and correct me if I'm wrong but your head is a 97 (type r maybe)that's the first number stands for

My head is stamped pr3-2,and says it's a 1998 head and has the green paint behind the dizzy.i heared the green paint behind the dizzy also means to be a type r...is it the ctr or ITR?

With an LSVTEC u get the best of both worlds

Just a thought. A dirt bike uses a header pipe, just one, one exhaust port. Aftermarket headers for 4 cylinder cars use multiple pipes(multiple headers) that run separately from each cylinder and meet at the collecter to decrease backpressure. I see your point, although It can be argued either way

Dont forget also type r comes dual valve springs.

good video man good to see another black person in the honda game and we both got integra's projects lol keep it up man

u can change any thing on the integra sir g eng like I did . type r pistons type r cams springs and retainers also changed the header and intake manfoil to a skunk2 manafoil as its the same as the dc2 type r manafoil

I have a b18c and a p73 intake manifold will not directly bolt up so it will have to be aftermarket to get away from the snail shell. 👍🏾

No, it's "headers".. it's the same with pants, one pant leg is a "pant" but there's 2 so they're "pants".. the same with a "header" there are a total of 4 so it's a set of 4 "headers"

The GSR intake Manifold isn't interchangeable with other B series Vtec heads. Type R, B16/are.

How about look at the numbers stamped on the block?? Instead of looking at other parts trying to guess lmao. Simple. You are trying to make it harder than it needs to be. Not to mention, you made it very clear in the beginning of this video that you have no idea what you ar wa talking about.

Bolt pattern of the distributors are noticeably different as well. Best way to know what you got is check the block stamp, then check the VIN to make sure it ain't stolen but generally if it ain't ground off its not stolen, but ya never know. Forgot about the pr3 cast code ya got me on that one, damn I'm getting rusty. Pr3 type r head comes with dual valvesprings and much stronger retainers as well, not sure if the type R head actually has bigger valves or not in it , I'd assume it would.

How about put the head pr3 into the b16a5 engine… is it working line type R … tq

Only 98 Spec Integra Type R have the 4-1 stainless header. 95-97 Integra Type R has a cast iron 4-2-1 header the same design as the SiR-G engine but it has longer primary runners and enlarged secondary with a 2.5" collector vs a 2.25" collector for b16 and SiR-G. B18C Type R engine serial number also starts at 190-220.

This is an old video... but you can also tell the difference in engines by where the upper radiator neck on the head is. The Gsr is in the front the b16 or type R head the radiator hose is in the back. 👍👍

the fastest way to determine for B18C GSR engine is intake manifold and coolant outlet. No other B series have coolant water outlet in the front of the head. i'm surprise no body talk about this.

You got the majority of it correct but couple of things to confirm/change: 1) B18C4 is indeed from the UK - lower compression than B18C. 2) B18C6 is also the UK - UKDM Type R engine - identical to JDM engine (only difference is the exhaust manifold used) 3) 96 Spec JDM DC2's use a 4-2-1 exhaust manifold. Only 98 Spec JDM DC2's have a 4-1. Good video non the less, keep it up! :)

its really simple you check the head code. Type r head is actually P30/PR3 is actually the B16A Head ported GSR Head is P72 the intake port is larger

Instant favourite video, great knowledge you got!

Good effort man...thanks!i love jdm,VTEC RULEZZZ...

Nice vid mate. Australia got the B18C7 which came out in the 2000 Integra Type R. Another way of telling a Type R, well here in Oz anyway is on the very front, lhs of the block near the bottom i(as you stand at the front of the car) it will say whether it is B18C or whatever, mine has C7 as we got the latest and greatest of the B18 donks. Anyhow, great vid bro, keep up the good work. It also has a PR3 ecu behind the passenger footwell on the inside of the car where the feet would go.

and here in Portugal the the gsr engine, has the code b18c4

I just got a 94 with the b18c1 all stock that was in a flip over accident. The entire engine bay was untouched the hood barley had scratches starts right up first try 200k miles on it going to throw it in my 93 civic soon.🤙🏼

Instantaneously subscribed after 3:53 LOL.

The numbers means the year of the car!

Headers is common grammar ! Header refers to each runner since there are 4 multiple equals headers

b18c4 for all of europe on the MB civics, b18c5 1996 and below (hand ported heads) b18c6 1996 and after (cnc ported heads) both with 190hp

No one has mentioned that the type r connecting rods are thicker/stronger than the GSR

dont remember what ALL the numbers on the left side of the exhaust ports mean, but the first one that looks like "9/7" indicates the year it was made... 9/7= 97 i.e. 1997....which is another way to also help determine the part's origin...

i also love to correct people on the header/headers comment also tire tread/thread

the dc2 type r header will fit on a sir g head!!!

I have a b18C in my Mini and can confirm it's fast as fuck

just a thought can you make a video about maintenance on the integras, preventative maintenance what to do to keep them running great and healthy along with suspension and stuff. some people don't take care of these cars at all! mybe on the next live stream you guys can talk about it and chime in your thoughts

type R head has dual valve springs on the intake and exhaust valves and high lift cams

Can you make a video on how much a basic mostly oem GSR build should APPROXIMATELY run for? I'm getting my 95ls back on the road, it's got a B18C. I presume it's Japan spec considering it's just "b18c" no numbers. It burns quite a bit of oil and I'm looking to maybe rebuild it. My crank should be solid, and I would really only go for head work, the block down would be stock

Their are differences between the ITR 96SPEC and 98 -00..for instance the header and gear ratio are different between the 2

Those other numbers are date codes of when the head was manufactured

love your videos man! i subbed for sure!

Actually it's an exhaust manifold if it's stock / cast

you know what's also I correct saying that gsr manifold would bolt on the pr3 head ... p72 is totally different cast head...

Header proper term exhaust manifold

type r engines are excellent

Isn't the cam profile different as well.

ALSO... THE (TYPE-R) IS A (C5) AND THE (GSR) IS A (C1)

I have a question. Would a engine harness for a 99' B20 plug up in a 99' GSR B18C1?

what about the different cam shafts and pistons...

the numbers are the date manufactured I believe and the lot number

i'm confused about the difference between extractor and header. are they different ?

B18C6 for Integra type R in Europe 😉

Gsr and Itr intake manifolds are not compatible they have a different bolt pattern.

Awesome vid bro, nice teggy definitely subbing

b18c2 in australia

lmfao I died when he was correcting people on the word header/headers and it zoomed in on his eyes lmao 🤣🤣🤣

which one is better crankshaft b18cr or b20? looking for an answer

Also, does your trans make a slight whining when decelerating in 4th. My stock ls trans did it, and also my jdm gsr trans does it. Just wondering if anyone else's does this??? And why only in 4th?

The price difference between a type r and a gsr is stupid, you can get a gsr, put an intake, cam and header on, make more power than the type r and save a grand

b18c2 is the aussie delivered sir g equivalent. b18c7 is our type r

the type r intake manafoil won't fit on a sir g but the skunk 2 manafoil will fit on the sir g head!!!

Thankyou for the knowledge brother im looking to build up my 93 dx make it stick and allat so far i got a cold air intake a 4-2-1 HEADER 😂 and catless exhaust all from dna motoring im gonna chip it after I upgrade the suspendo but truthfully i got the shell i want im just saving money for my swap and im doing my research

great video man keepem coming

GS-R intake manifold will not bolt on a Type R or a Si head or vice versa

b18c6 it's from Portugal so we can say that maybe for south Europen

The easiest way to find out if you have a true JDM type R block you will have a P72 stamp on your head

The 97 on the head indicates the year it was made

at the end when you said udk wat the number means thev97 means the year

B18c1, c2 and b18c5 are in australia

Your head is definitely a '97 as others have mentioned.. but I'm curious as to what motor it came from because they didn't make many b series vtec motors in '97.. the em1 was only 99-00 so honestly you either have to have a jdm b16a head or a legit itr head. Have you checked the cam markings on the "b16" cams that came with your head? Lol, there's photos online to show the differences between them but I'm sure you knew that! 🤔

Info is always good peace

the first number is year it was made in your case 97

B18c4 (1.8 169cv) 1.8vti mb6 B18c6 (1.8 190cv) 1.8 itr

im drunk so i will subscribe ;)

And 2 vtec variable timing electronic control you lack to tell the property info some people might say search the web before you get on KZfaq to try to point out a fact

the numbers are the manufacture date month and year

One i have a B18A1 here in the u.s imported from japan

number on the far left is year the head was kast.